Intermittent sftp/ssh "packet corrupt" errors on RHEL systems

Issue

• We are seeing intermittent errors from sftp. We see the following messages in /var/log/messages and /var/log/secure:

• /var/log/messages errors:

Apr  8 09:13:29 hostname sftp-server[24572]: error: read: Connection reset by peer
Apr  8 09:13:38 hostname sftp-server[24563]: error: read: Connection reset by peer
Apr  8 09:13:47 hostname sftp-server[28148]: error: read: Connection reset by peer
Apr  8 09:14:21 hostname sftp-server[3523]: error: read: Connection reset by peer

• /var/log/secure messages:

Apr  8 09:05:08 hostname sshd[30685]: Corrupted MAC on input.
Apr  8 09:05:08 hostname sshd[30685]: Disconnecting: Packet corrupt